Experimental analysis demonstrates two-fold addition of silylene to C60 to form a silirane bis-adduct, indicating cathodic shifts in redox potentials.
The addition reaction of C 60 with silylene 1 , a silicon analog of carbene, yielded the corresponding bis-adduct 3 . The structure of 3 was determined by single-crystal X-ray structure analysis, representing the first example of a crystal structure of a silirane (silacyclopropane) derivative of fullerenes. Electrochemical measurements confirmed that the redox potentials of 3 are shifted cathodically compared to those of the parent mono-adduct 2 . Density functional theory (DFT) calculations provided the basis for the electronic properties of compound 3 .
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Kako et al. (2024) studied this question.
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